Guests not receiving invitations?

Contact them a few days after the rsvp deadline to get a final count

You could call them and see how it's going. invites do get lost. I had some returned a month after I sent them for various reasons. If they truly didnt get them, they'll be happy to have the info.

In your case, I wouldn't wait a few days after your rsvp date to start phoning. You need to contact them immediately after the rsvp date so if there is anyone else who didn't receive their invitation, you can give them a couple of days to decide if they can attend and get back to you.

When you contact the non-responders you will find out if anyone else did not receive an invitation. If so, apologize for the late notice, and email them a copy of the invitation. Tell them you know it is an imposition to expect an answer in such a short time period, but nevertheless your caterer needs final numbers. Follow up by sending them a hard copy of the invitation.

I'm not sure I understand your comment about more guests being added. Are you still inviting people ?

@muriel - Thanks for your response. I ordered an extra 20 invitations initially for this kind of thing, but after having added more guests throughout the process, I am running extremely low. And yes, my parents are adding a couple more guests recently, which is fine by me as they are paying for the wedding.

We had this happen to us with one couple - they received the shower invite (and thank you card) but not the actual wedding invitation. We found out when we contacted them after the RSVP date.

With luck, only a few people did not get the original invitation. If you find more of them after you start contacting late respondents, apologize that they didn't receive theirs in the mail, but offer to give/email them the details. In this case, I don't feel like you need to send a new invitation - the turnaround time is just too tight, and I think most folks will understand.

Take a picture of the invite on your phone and text it to anyone who says they didn't get theirs. Or send them the link to your wedding website.

Text them today: "Hi xyz, just checking to make sure you received your invite to my wedding. A few people have told me they never received theirs. If you didn't receive it, please let me know and I'll send you all the info - I would love for you to join us for our celebration!"

This is part of why I sent save the dates to pretty much everyone - so that people could book their calendars way ahead of time and would hopefully reach out if they had questions/concerns closer to time since they would know they should have received am invite!

Contact them a week or two before RSVP time. I had 12 invites get lost because our mail people in my area are the actual worst.